Conveyer flight



April 14, 1931. F. s. SCHADE CONVEYER FIJIGHT Filed Oct. 14 192 gwventoz m a, MM 0 h H M .0 aw I W W l lll Patented Apr. 14, 1931 hEETE Tr PAThiT @FFEQE FRAIIK STANLEY SCHADE, F EOLYOKE, MASSACHUSETTS, ASSIGN'OR TO CHAIN BELT COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF VJISCONSIN coNvEYnR FLIGHT Application filed October 14, 1926. Serial No. 141,606.

his invention relates to conveyer flights and more particularly to a flight especially adapted for use in connection with a uniplaner type of conveyer such, for example, as

; that shown in the patent to Levalley 1,028,751

wherein the chain is operated with the chain pins in a vertical plane about sprockets arranged in a horizontal plane and inwhich the flights are attached to the chain at right angles to the side bars and operate in a horizontal plane.

The invention has for one of its objects to provide a flight for this type of conveyer which will be simple in construction, comparatively inexpensive to manufacture and more efiicient in use than those which have been heretofore proposed.

A further object of the invention is to provide a conveyor flight of the class described which may be readily stamped from sheet metal and which may be readily assembled in operative position on any one of several types of standard conveyor chains.

A still further object of the invention is to provide a flight for uniplaner conveyer which will present a substantially unbroken surface for receiving the articles to beconveyed and which is securely fastened to the chain by means of the chain pins.

With the above and other objects in view which will appear as the description proceeds, theinvention consists in the novel details of construction and combinations of parts more fully hereinafter described and particularly "pointed out in the appended claims.

Referring to the accompanying drawings forming a part of this specification in which like reference characters designate like parts in all the views:

Figure 1 is a plan view of a portion of a uniplan-er conveyor with several flights, constructed in accordance with the present in vention attached thereto;

Fig. 2 is a central vertical sectional View of the parts shown in Fig. 1;

Fig. 3 is a plan view of a slightly modified form of flight; and,

Fig. a is an edge elevational view of the flight shown in Fig. 3.

Referring more particularly to Figs. 1 and 2, there is illustrated a well known form of conveyor chain comprising a plurality of links 5 which are pivotally secured together by means of the chain pins 6 which extend through the cross bars 7 of one link and the ends of the side bars 8 of the next adjacent link in the well known manner. Since no particular novelty resides in the chain it is not thought necessary to describe it more in detail.

Secured to the conveyer chain at each of its articulating centers, as defined by the chain pins 6, are the conveyer flights 10 which constitute the gist of the present invention. As will be clear from Fig. 1, these flights comprise crescent shaped sheet metal members, the edges of which are defined by the arcs 11 and 12, the former of which is struck from the center or chain pin of the link above which the flight is located with a radius approximately equal to the pitch of the chain or preferably slightly less in order to provide clearance. The second are 12 is struck from the next succeeding center or pin 6 with a radius substantially equal or slightly in excess of the pitch of the chain as will be read ily understood.

As above stated and as will be clear from the drawings, the said flights are formed of sheet metal and in order to prevent the heads 13 of the pins 6 from projecting above the upper surfaces of the flights, the latter are provided substantially at their mid portion with a depressed pocket 14, the bottom wall 17 of which is provided with an aperture 15 through which the chain pin 6 may pass before it is riveted or headed, as indicated at 13. The said depressions 14 are preferably formed by stamping and may be substantially rectangular in shape as shown with the ribs or corrugations 16 also formed during the stamping operation extending from the corners of the depressions and serving to strengthen the flight.

The bottom wall 17 of the depressed portions 1% is also provided during the stamping operation with a pair of oppositely extending tongues 18 which as the flight is assembled upon the chain, are bent downwardly to embrace the sides ofthe chain links to preing the chain bolts 6 where such bolts are are Preferably cut awayalong the outer arcs 11,' as indicated at whereby the entirebolt head 13 will be exposed. As a matter offact,

vent any relative turning movement between the flightan'd the link. V i 1 i In order to facilitate the heading or'rivetemployed,.or to permit-oi the use of a nut where a threaded boltis employed, the flights' it is "possible to assemble a conveyer of this type by-"emplo'yi'ng 'the'presentflight without so cutting away the flights except in. the

it case of the-last one, but inorder to make the flights uniform and; lower production costs, it is deemed advisable to cut them all away as indicated in Fig. lfof the drawings. r

When employing a ,chain using headed bolts such as 6,;in order to attach the ends of the chain; togethenit is customary to em-f' ploya-threaded bolt-21 as shownfin Figs. 1

and 2, which bolt receives the nut 22' toretainthe parts in place; In order to lock the said gnut against xunintentional displacement,

atsmalllug 23 may be formed upon" the bot tom portion 17 of the depression 14: which lug may be turned. upwards as indicated in j Figs; land 2 after'the parts have been assembled; r

- In many instances thegconveyer may be used with the flights-as shown in Figs; 1 and-2 but in some cases the .d-epressions 14: formed in the flights as well as the reentrant arcsQOinay be detrimental in that the articles carried may tend to catchjtherein. In this event a smooth surface may be provided by attaching to thelflights 10, a crescent. shaped platev 25 as shown in Figs. '8 and 4, which 7 plate is imperforate except for a pair of small apertures to accommodate the rivets,

bolts or. other fastening means 26, by means of which sa d platels secured to the .fligh 1 In some instances it may alsobe necessaryi or desirable to provide the; flights with up standing lugs or projections toengage the sides" of the articlescarried thereby although in-ordinarypracticethis will not-be found necessary. Insomeexceptmnal instances 1t may-also benecessary to provide brackets to:

*ot the various flights 10- to reduce friction carryrollers Tor casters, which brackets are; attachedto-the unders desiof 31190113101101 all I and wear. upon-the s'aidflights.

v lytoithe chain-links;

It will-thus be seen that the present in vention'provides a conveyer flight particula rliy adapted: for use with: a juniplaner conveyer which maybe operated about'sprockets of; small, diameter withoutv leaving, any gaps or openings between the flightst-Furthermore the said flights are "rigidly con.-

nected to the chain by means of the chain bolts and provision ism de whereby the flights are prevented from turning relative- V Itis obvious that those skilledin art may'yary the details ofconstruction aslwell j placement;

as, the precise arrangements of parts without departing from the spirit of the invention and therefore, it is not wished to be limited 3 to the above disclosure except as may be re-1 quired by the claims.

What'is claimed is conveyer chain; a horizontally disposed flight having a depressed portion engaging and securedto eachiof the chain links; and-means comprising link-engaging tongues for preventingrotarymovement of said flight relative toitslink. l g

a rconveyer-of the class described, a conveyer chain; a horizontally disposed flight having a depressedportion engaging each Vofthe chain links at itsaarticulating center'; a bolt rcarriied said links; passing through said depressed portion; a nut on said bolt; securing said flight to said links; and means carried by said flight for locking said nut. against-unintentional displacement;

'3. In a conveyer of the'class described aconveyer chain a horizontally-disposed flight having a depressed portionZengaging eachof 1. In a conveyer of the class described; a

the chain links at its articulating icenter;

a pair of angularly disposedlink-engaging tongues carried by said flight for preventing rotary movement thereof rel-ative to its link; afbolt carried by said linksg'passingthrough said depressed portion; anut on said bolt, securing-said flight to saidelinks; and means 7 comprising a lug carried-by said flight for locking said nut against unintentional dis- 4: A conveyer comprising aisubs'tantially flat-sheet metal plate, stamped to providea depressed chain-engaging portion and reinforcing corrugations extending ifrom said p depressed portion- I V r a 5.' A. conveyerfl' ght comprisingia substantiallyv flat sheet metal-plate provided with a depressed; chainrengaging portion having tongues adapted to embrace aportion of a chain link." i y '6. Alconveyer flight comprising a substanrtiallyfiflat sheet metal plate providedwith a 

